20933979

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{27581}}^1$

素因数の和:27618

約数の個数: 16

約数和(自身を含む): 31774464

約数和(自身を除く): 10840485

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 27581, 82743, 303391, 634363, 910173, 1903089, 6977993, 20933979]

約数ペア:

[(1, 20933979), (3, 6977993), (11, 1903089), (23, 910173), (33, 634363), (69, 303391), (253, 82743), (759, 27581)]